classifying rocks


vocabulary


texture - the look and feel of a rocks surface determined by the size ,shape and pattern of a rocks grains.
grain - a particular of mineral or other rock that gives a rock its texture .
igneous rock -a type of rock that forms from the cooling of molten rock at or below the surface.
Sedimentary rock -a type of rock that forms when particels from other rocks or the remains of plants and animals are pressed and cemented together
metamorphic rock - a type of rock that forms from an existing rock that is changed by heat ,pressure ,or chemical reactions.

outline